Download and install the driver, you will get the error while installing.Perform the below steps to fix the issue.1. Click on Start and select Run. Now type devmgmt.msc and press enter.2. Right click on "Audio device on High Definition Audio Bus" and click Update driver.3. Select "Install from a list or specific location".4. Click Next. Then select "Don't search, I will choose the driver to install".5. Click Next and then select "Sound, video and game controller" from the list.6. Click Next and then click Have Disk.7. Click Browse C:\swsetup\sp39671 folder and select the .inf file and click open and Continue with the onscreen instructions.If you still having trouble to install audio follow tutorial here. =============================

If you have Intel Graphic:Mobile Intel 4 Series Express Chipset Family Graphics DriverDownloadDownload (64-bit)

WIRELESS:===========Choose one of the wireless driver base on your specs, if you dont know, just try each driver (there are no risk and will not harm your system)---------------------------------------------------------Broadcom: Download - tested work